<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="author" content="VectorX">
    <meta name="keywords" content="背景">
    <title>背景</title>
    <style>
        .box1 {
            height: 500px;
            width: 500px;
            border: 10px red double;
            padding: 10px;
            background: #bfa url("assets/背景/dlam.png") no-repeat 100px 100px/200px padding-box content-box;
        }
    </style>
</head>

<body>
    <div class="box1">
    </div>
</body>

</html>